Dyeing and anti-ultraviolet property of silk fabric with purple sweet potato colorant
In order to achieve the dyeing and anti-ultraviolet function in one process,silk fabric dyeing with purple sweet potato pigment is carried out.The effects of pH values and mordants on dyeing behaviors and ultraviolet resistance properties of silk fabric are studied.The results show that the shades and ultraviolet-visible spectra of the purple sweet potato dyes change significantly with pH values and mordants.Low dyeing pH value is good for silk dyeing and the appropriate dyeing pH value is 3.Three kinds of mordants such as aluminum potassium sulfate,ferrous sulfate and copper sulfate can improve the K/S values and change the color shades of the dyed fabrics.Color stability and color fastness of the dyed samples with ferrous sulfate or copper sulfate as the mordant are better than that with aluminum potassium sulfate as the mordant.Moreover,the dyed silk fabric has good UV resistance performance and certain acid-base indicator function.
NETL
NSTL
万方数据
维普
